142536530 has 8 divisors (see below), whose sum is σ = 256565772. Its totient is φ = 57014608.

The previous prime is 142536523. The next prime is 142536533. The reversal of 142536530 is 35635241.

142536530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 128346241 + 14190289 = 11329^2 + 3767^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 142536493 and 142536502.

It is not an unprimeable number, because it can be changed into a prime (142536533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7126817 + ... + 7126836.

Almost surely, 2^142536530 is an apocalyptic number.

142536530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142536530 is a deficient number, since it is larger than the sum of its proper divisors (114029242).

142536530 is a wasteful number, since it uses less digits than its factorization.

142536530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14253660.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 142536530 is about 11938.8663615940. The cubic root of 142536530 is about 522.3665921623.

The spelling of 142536530 in words is "one hundred forty-two million, five hundred thirty-six thousand, five hundred thirty".